Question 490 in the bank

What is the meaning of the following traffic sign?

A round white sign with a thick red border and no symbol or text inside. Meaning: Road closed in both directions for all vehicles.
  1. Correct answer: Road closed in both directions for all vehicles.
  2. No entry for motor vehicles (one-way street ahead).
  3. No entry for non-motor vehicles (one-way street ahead).
  4. No entry to the lane beneath the sign.

Why this is the answer

The correct answer in the official bank: Road closed in both directions for all vehicles.

A plain white circle with a red border and nothing inside means the road is closed to all vehicles in both directions. It has nothing to do with one-way streets and does not distinguish between motor and non-motor vehicles. Signs that ban only a certain type of vehicle show a symbol of that vehicle inside the circle.

Topic: Traffic signs. The bank marks it for these classes: Light truck (C1), Heavy truck (C), Bus (D), Motorcycle (A), Tractor (1), Private car (B).